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Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at s=13 TeV with the ATLAS detector
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Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at s=13 TeV with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, D.C. Abbott, O. Abdinov, A. Abed Abud, D.K. Abhayasinghe, S.H. Abidi, O.S. AbouZeid, N.L. Abraham, …
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol.795, pp.56-75
08/2019
DOI: https://doi.org/10.1016/j.physletb.2019.03.067
Web of Science ID: WOS:000477924000009

摘要

Nuclear and High Energy Physics
A search is performed for localised excesses in dijet mass distributions of low-dijet-mass events produced in association with a high transverse energy photon. The search uses up to 79.8 fb −1 of LHC proton–proton collisions collected by the ATLAS experiment at a centre-of-mass energy of 13 TeV during 2015–2017. Two variants are presented: one which makes no jet flavour requirements and one which requires both jets to be tagged as b-jets. The observed mass distributions are consistent with multi-jet processes in the Standard Model. The data are used to set upper limits on the production cross-section for a benchmark Z ′ model and, separately, on generic Gaussian-shape contributions to the mass distributions, extending the current ATLAS constraints on dijet resonances to the mass range between 225 and 1100 GeV.

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引用書目主題
5 Physics
5.9 Particles & Fields
5.9.19 Beyond Standard Model
Web Of Science研究領域
Astronomy & Astrophysics
Physics, Nuclear
Physics, Particles & Fields
ESI研究領域
Physics

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